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    • 3. 发明授权
    • Preparation of 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane
    • 6,6'-二羟基-3,3,3',3'-四甲基-1,1'-螺二茚满的制备
    • US5399783A
    • 1995-03-21
    • US225559
    • 1994-04-11
    • Mizuo ItoShigeru Iimuro
    • Mizuo ItoShigeru Iimuro
    • C07C37/84C07C39/12
    • C07C37/84C07C2103/84
    • Crystals of 6,6'-dihydroxy-3,3,3',3'-tetramethyl -1,1'-spirobiindane (hereinafter referred to as SPI) are obtained by cooling a phenol solution containing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane when crystallization is started at a temperature higher than a transition temperature between SPI and an adduct of SPI with phenol. The crystals are washed with an organic solvent or contacted with water and further washed with an organic solvent. When crystallization is started at a temperature less than the transition temperature, adduct crystals of SPI with phenol are obtained from the phenol solution. Phenol is removed from the adduct crystals and the adduct crystals are contacted with water to obtain a hydrate and further the hydrate is washed with an organic solvent.
    • 通过将含有6,6'-二羟基-3,3,3',3'-四甲基-1,1'-螺二茚满的酚溶液(以下称为SPI) ,3,3',3'-四甲基-1,1'-螺二茚满当结晶在高于SPI与SPI与苯酚的加合物之间的转变温度的温度下开始时。 晶体用有机溶剂洗涤或与水接触,并进一步用有机溶剂洗涤。 当在低于转变温度的温度下开始结晶时,从苯酚溶液中获得SPI与苯酚的加合物晶体。 从加合物晶体中除去苯酚,并将加合物晶体与水接触,得到水合物,再用有机溶剂洗涤水合物。
    • 5. 发明授权
    • Method for simultaneous preparation of bisphenol F and novolak phenol
resins
    • 同时制备双酚F和酚醛清漆酚树脂的方法
    • US5395915A
    • 1995-03-07
    • US104920
    • 1993-08-12
    • Shigeru IimuroSatoru ItoTomoko TakashimaTakashi Kitamura
    • Shigeru IimuroSatoru ItoTomoko TakashimaTakashi Kitamura
    • C07C37/74C07C39/16C08G8/10C08G8/20C08G14/02C08G8/04
    • C07C39/16C07C37/20C07C37/74C08G8/10C08G8/20Y02P20/582
    • Herein disclosed is a method for simultaneously preparing a highly pure bisphenol F and/or a bisphenol F for general use and a novolak phenol resin and/or a high molecular weight novolak phenol resin comprising the steps of:(1) a preparation step comprising reacting phenol with formaldehyde in the presence of an acid catalyst and removing the acid catalyst, water and the unreacted phenol from the resulting reaction product to give a crude bisphenol F;(2) a distillation step comprising distilling a part of the crude bisphenol F to give a highly pure bisphenol F, as a distillate, having a binuclear moiety-content of not less than 95% by weight and a novolak phenol resin, as a still-bottom product, having a binuclear moiety-content of not more than 15% by area;(3) a step for mixing the highly pure bisphenol F with the remaining crude bisphenol F to give a bisphenol F for general use; and(4) a step for polymerizing the novolak phenol resin with formaldehyde in the presence of an acid catalyst to give a high molecular weight novolak phenol resin.
    • 本文公开了一种用于同时制备用于一般用途的高纯度双酚F和/或双酚F和酚醛清漆酚醛树脂和/或高分子量酚醛清漆酚树脂的方法,包括以下步骤:(1)制备步骤,包括使 苯酚与甲酸在酸催化剂存在下,从所得反应产物中除去酸催化剂,水和未反应的苯酚,得到粗双酚F; (2)蒸馏步骤,包括蒸馏粗双酚F的一部分,得到作为蒸馏物的高纯度双酚F,双核部分含量不小于95重量%,酚醛清漆酚树脂作为静止物 双产物,双核部分含量不超过面积的15%; (3)将高纯度双酚F与剩余的粗双酚F混合以得到通常使用的双酚F的步骤; 和(4)在酸催化剂存在下使酚醛清漆酚醛树脂与甲醛聚合的步骤,得到高分子量酚醛清漆酚醛树脂。